<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>


    <!--卡片视图区域-->
    <el-card>
      <!--搜索于添加区域-->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type='primary' @click="addDialogVisble=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!--用户列表区域-->
      <el-table :data="userlist" border stripe>
        <!--[设置索引列-->
        <el-table-column type='index'></el-table-column>
        <!--设置索引列]-->
        <el-table-column label='姓名' prop='username'></el-table-column>
        <el-table-column label='邮箱' prop='email'></el-table-column>
        <el-table-column label='电话' prop='mobile'></el-table-column>
        <el-table-column label='角色' prop='role_name'></el-table-column>
        <el-table-column label='状态'>
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label='操作' width='180px'>
          <template slot-scope="scope">
            <!--修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size='mini' @click='showEditDialog(scope.row.id)'></el-button>
            <!--删除按钮-->
            <el-button type="danger" icon="el-icon-delete" size='mini' @click='removeUserById(scope.row.id)'>
            </el-button>
            <!--分配角色按钮-->



            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size='mini' @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!--分页区域-->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 4, 10]" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>

    <!--添加用户的对话框-->
    <el-dialog title="添加用户" :visible.sync="addDialogVisble" width="50%" @close="addDialogClosed">
      <!--内容主体区域-->
      <!--用户名-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <!--邮箱-->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <!--手机-->
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisble = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>


    <!--修改用户对话框-->
    <el-dialog title="修改" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!--用户名修改-->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <!--邮箱修改-->
        <el-form-item label="邮箱" prop='email'>
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <!--手机号码修改-->
        <el-form-item label="手机号" prop='mobile'>
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>


    <!--分配权限对话框-->
    <el-dialog title="修改" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClose">
      <div>
        <p>当前用户：{{userinfo.username}}</p>
        <p>当前角色:{{userinfo.role_name}}</p>
        <p>分配新角色
          <el-select v-model="SeletedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>

        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>
<script>
  export default {
    data() {
      // 验证邮箱的规则
      var cheackEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^\w+@[a-z0-9]+\.[a-z]{2,4}$/

        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
      }
      // 验证手机号的规则
      var cheackMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/

        if (regMobile.test(value)) {
          // 合法的手机号
          return cb()
        }
        cb(new Error('请输入合法的手机'))
      }
      return {

        // 获取用户列表的参数对象
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 2
        },
        userlist: [],
        total: 0,
        addDialogVisble: false,
        // 添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 添加表单的验证规则对象
        addFormRules: {
          username: [{
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          }, {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur'
          }],
          password: [{
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          }, {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur'
          }],
          email: [{
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          }, {
            validator: cheackEmail,
            trigger: 'blur'
          }],
          mobile: [{
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          }, {
            validator: cheackMobile,
            trigger: 'blur'
          }]
        },
        // 控制修改用户对话框的显示于隐藏
        editDialogVisible: false,
        // 查询到用户信息对象
        editForm: {},
        // 修改表单的验证规则对象
        editFormRules: {
          email: [{
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          }, {
            validator: cheackEmail,
            trigger: 'blur'
          }],
          mobile: [{
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          }, {
            validator: cheackMobile,
            trigger: 'blur'
          }]
        },
        // 控制分配角色显示于隐藏的对话框
        setRoleDialogVisible: false,
        // 需要被分配角色的用户信息
        userinfo: {},
        // 所有角色的数据列表
        rolesList: [],
        // 已选中角色的Id
        SeletedRoleId: ''
      }
    },
    created() {
      this.getUserList()
    },
    methods: {
      async getUserList() {
        const {
          data: res
        } = await this.$http.get('users', {
          params: this.queryInfo
        })
        if (res.meta.status != 200) return this.$message.error('获取用户列表失败')
        this.userlist = res.data.users
        this.total = res.data.total

      },
      handleSizeChange(newSize) {
        // 将最新的分页数据更新
        this.queryInfo.pagesize = newSize;
        this.getUserList()
      },
      handleCurrentChange(newPage) {
        // 将最新的分页数据更新
        this.queryInfo.pagenum = newPage;
        this.getUserList()
      },
      // 监听switch开关状态的改变
      async userStateChanged(userinfo) {
        const {
          data: res
        } = await this.$http.put(
          `users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功')
      },
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      //点击按钮 ，添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return
          // 可以发起添加用户的网络请求
          const {
            data: res
          } = await this.$http.post('users', this.addForm)
          if (res.meta.status != 201) return this.$message.error('添加用户失败')
          this.$message.success('添加用户成功')
          this.addDialogVisble = false
        })

      },
      // 展示编辑用户的对话框
      async showEditDialog(id) {
        const {
          data: res
        } = await this.$http.get('users/' + id)
        if (res.meta.status != 200) return this.$message.error('查询用户信息失败')
        this.editForm = res.data
        this.editDialogVisible = true;
      },
      // 监听修改用户对话框的关闭事件
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) return
          // 发起修改信息的数据请求
          const {
            data: res
          } = await this.$http.put('users/' + this.editForm.id, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
          if (res.meta.status != 200) {
            return this.$message.error('更新用户信息失败')
          }
          // 关闭对话框
          this.editDialogVisible = false
          // 刷新数据列表
          this.getUserList()
          // 提示修改成功
          this.$message.success('更新用户信息成功!')
        })
      },
      // 根据id删除对应的用户信息
      async removeUserById(id) {
        // 弹框询问用户是否删除数据
        const confirmResult = await this.$confirm('此操作将永远删除该用户,是否继续？', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        // 如果用户确认删除,则返回值为字符串 confirm
        // 如果用户取消了删除，则返回值为字符串cancel
        // console.log(confirmResult)

        if (confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        const {
          data: res
        } = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('删除用户失败')
        }
        this.$message.success('删除用户成功')
        this.getUserList()

      },
      //展示分配角色的对话框
      async setRole(userinfo) {
        this.userinfo = userinfo
        // 在展示对话框之前，获取所有角色的列表
        const {
          data: res
        } = await this.$http.get('roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败')
        }

        this.rolesList = res.data
        this.setRoleDialogVisible = true

      },
      // 点击按钮  分配角色
      async saveRoleInfo() {
        if (!this.SeletedRoleId) {
          return this.$message.error('请选择要分配的角色')
        }
        const {
          data: res
        } = await this.$http.put(`users/${this.userinfo.id}/role`, {
          rid: this.SeletedRoleId
        })

        if (res.meta.status !== 200) {
          return this.$message.error('分配角色失败')
        }
        this.$message.success('分配角色成功')
        this.getUserList()
        // 关闭对话框
        this.setRoleDialogVisible = false;
      },

      //   监听分配角色对话框关闭事件 
      setRoleDialogClose() {
        this.SeletedRoleId = '';
        this.userinfo = {};

      }

    },
  }

</script>

<style lang="">

</style>
